Spraying apparatus.



AR. N. STEWART.A

SPRAYING APPARATUS. I

APPLICATION FILED MAILZZ. Isla.

`Patented Feb. 20, 1917.

/m/:NTDR Har Al STEWART mp4/W ms wams persas on, Hom-uma. wAsnmcmN. n, c,

i Y .,Be. it .known thatI, AROY ycitizen of the United Statesesiding. at Dor- BOY Ng STEWART-^O noncHEsTEn, MnssnciiUsituarse-'l 'srnnnidnrrnnnrus i -1 f if "f i Spee'icvation of Letters Patent.

,Appucatinqgieki Maren 22, '1913.r4 semaine. 756,691., z

chester, county V of 4fSuiiollr, Commonwealth of Massachusetts, `have invented certain new and useful `Improvements SprayingApparatus, of whichfthe ollowingdis a specification.,l ,u u u yThis inventionlrelates to V,water distribution and particularly to anirrigatingfand sprinkling system.l i A berry being a notableezcample, it 'ises's'enfarther tu@ .beds be irrigated frequently 1.7.1.5?

both Vfor growing, moisture and forV n'frost prevention.'

extensive scale and in a scientilic manner the ordinarysprinkling devices r`do not Siiflce. 4It isdesirable that the sprinkling apparatus VbeV of such a nature as towater compara-1 tively'v large tracts withv Y uniformfdistribution of water .and thatthe apparatusbe continuous in its operationso that itmay Yloelleft unattended for long intervals. u

To this end,V therefore, VI have devised my present invention in whlchI provide acontinuously acting element anda special form` oit swinging `distributing pipes-soiarranged as to have a predetermined working` arc and a uniform water delivery atfallpointsalong .vention 'will be more fullyfdisclosed inthe specication which followsand as illustra-vr Vits travel. v

The constructionv and of mylin-Y tive of the same I have 'shown in .the accompanying drawings a system whlchi-Ijhave Vfound well adaptedfor the purpose intended. Throughout specication yand drawings like characters of refnerencel are employed to indicate correspondlng parts and 1n these drawings: i I

. Figure 1 a asprinkling apparatus in accordance'. with vmy invention. Fig. 2is aside elevationthereof. u Fig. 3 is a 'detail section of the supply ValVe-ulIybpen' Vito permit maximum Vwater delivery, .and

terdelivery.; f, l,

I yhave indicated ati-1y an open `supporting frame to whichl is secured my v improved In the cultivation` of semeV fruits, thefcra'rr' The waterV must also be -uni i formlydistributedv and is preferably applied in ne jets in .order to get the best results. Where cultivation is carried on upon an v Simuafeojnigs slewing the valve positionedftopermit minimum yvayspri'nkling apparatus. YA' supply 2 delivers to'a two-way pipe-'3 mounted on `the nectedbranch pipes fand 6 Vcontrolled by ',mountedforoscillationonthe frame l'by 'i )means of a plurality 'of'V connected veccen" tric rods 12g and belleranks 14.7 Oneosaid Arods 13 is'connected'by a wrist'pin 15'1t`o1 the 1. shaftll of the pistonito'convert therecipro lcal movement thereof linto oscillatory move- -ment for tliejpipes; A lever 17 carryingjga vweight 18 nearits'lupper end'andfpivoted atv l19to the ramev'll has afribl() 'positioned frame and controlled a pair" of J check f'valve's t'. To the'ends fof this pipe are conn y stop and Lwas'te valves 7 and 8 anddeliver- 'fr l for actuationby a pair of'pins '10 on the shaft. 16." The lever is, therefore, rocked'y on its pivot bythe reciprocatio'n of the shaft,

'and stops 2O 4.arey provided "tolimit` its pathAV i I of travel. Y., Theadmis'sionof water to thesupply pipeis controlled by a valve 214 having Aajpassage 22Y therein adapted to establish communication between said pipe and a service'pipe 31. Y f This valve is actuated bythe throw of the lever.17, the valvelplug 23 thereo having gear'teeth 24 adapted for'engagement with. `the teeth ofasegment 25 carried byv said V"levenr The supply of water to the hydraulic piss ton Vis controlled the stop and waste valves 7 and 8 in the branch pipes 5 and so as to k'deliver'a head of watervintermittently ,to one end'of thevcyli'nderjQj and to sinu'iltaneously Vdischarge from the otherV end. The actuf i, ation of these valves also dependent upon the 'throw of the lever 17, the stemsth'ereof being rconnected by bell cranks 26 to a vrock lshaft 27 pivoted at 28 vtothe frame. and l `providedwith a pairoiy pins 29 positioned orfc'o'ntact inthe path of travel offsaid' lever. ,At-every -oscillation of the lever 17 Y byltheshaft' 16 therockshai't 27 given a corresponding actuation inthe fdirection'of.

.travelofthe lever". This will, therefordzoperatethe valves 7 and Sto admit water `into one end of the cylinder" and to exhaust from the lother end according to the direction of throW- of the rocklshaft. This action'is con` tinuous, as is the partial opening and closing of the ksupply pipe valve21. 4 l y The operation is as follows: Water passes through the pipe 2 into the branch `pipes 5 and 6 to the cylinder 9. One of the valves 7 or `8 isset to permit-the passage ofthe Water through its pipe and the other to discharge the Waste Water Afrointhecylinder 9. In this Way` ahead of Water is alWaysreXerting itspressure against -the piston in the This' reciproeatesthe' shaft 1G and 'through vthe connections described, rocks the Water distributing pipesll and the Weighted lever 17 c'oiinected'to saidshaft. Tliisfniovement of the leverlin turn causes the rock shaft 27 Vto intermittently operatethe valves T and '8,

one to the open, the other-to the` olosedposid Zoftion.'v 'Atthesaine'time'thesector 25 ofk said lever isengaging the teeth 2e to manipulate "the Water supply valve 21 to admit, or partiallyshutofi' Waterto the pipes, by means Y Y of fthe annular relief passage 28, around plug' 23. Y

n It is vob'viousthat given nozzle ivhen lit Vapproachestheend of its'a'rc'i'vill be delivering Water 'in excess of that actually re- Y quired, While as itapproaches'its center of highestrelative position of swing, the Water supplied Will b'einsufcient to thoroughly saturate lthe ground.` This is due to the change in theangle of elevation of'tlie nozzlejthat is, the point at lWhich trajectory strilresthe ground will move farther from the sprinkler pipe for a given arenal movement of the nozzle, when the nozzle is in an Aapprommately vertical position, than for Athe same arcual movement when' tlie'iiozzlcV approaches a horizontal position. It is therefore necessarythat the amount delivered be uniformly proportionate to tlier'el'af tive transverse speedof the nozzle.' This I-'accomplishby-sopositioning the lever 17 asto fully open the control .valve 2l`ivhen a sprayv pipe is approaching its highest' 'relativepositionof siving,th ereby admitting the maximum supply of Water, and to partially "travel, so asl to appreciably reduce the quanclose said valve Wlien'the spray pipe vis 'approaching its lowest .relative position of tity of Water thus'supplied. In this move- Vment, of the lever from one pin20 tothe v l other pin the valve is causedto make a complete revolution. In 'Fig'. 2 the valve has .turned to completely closethe Vpassage 22.

This vpermits only "the'minimum amount of `water to'iovv to the delivery pipes through the annular bypass 23 around the valve. As the lever approaches vertical'p'osition the valve turns to uncover the passage l22 .top'er- Vmit maximum supply ofi-Water to the delivery pipes. y d* This construction .permits the apparatus `to be left unattended for long periods of `time,sinee once having been started, its action is automatic.

Various-V modifications in the forni and construction of Vmy invention 'coming With- -inv its spirit and scope may obviously be re- 'sorted to if found Within the limitsof the appeiidedclaims. Y Y ,Y

What I therefore claim and desire to selcure by'Letters Patent is:

l. VIn an apparatus ofthe class described, a fluid supply, A:an loper-ating Ielement actuated the'reby, a iuid delivery, a `connection between saidf' operating @element and said delivery'efi'ective'to'impart to the latter` an oscillatory movement,v a Yvariable controlgforxsaid supply, land afconiiectioii be- 'tween said variable control andsaid first named connection for varying said control during said` oscillatory "movement to proportion the 'volume' of fluid supplied accoi'ding to theposition of saiddeliveryrelative `to the' area'to becovered.

' 2. 'Inanapparatus'of'theclass described, a ivfli'iid ksupplyfan operating element actuated thereby, "afluid delivery including' 'a plurality Y' of 4`sprinkling devices, a connection `between fsaid operating lelement and f said 'sprinkling'devices'eifective to impart to the latter anoscillatory'movement, a variabl'econtrol for-"said supply,fand a connection between 'said variable'control and "saidfirst named connectionforvarying said control during saidoscillatorymovement to proportion the 'volume' of fluid' supplied accordingfto the'position ofsaiddelivery relative-tothe area tobe covered.

3. Tn `an apparatusfof the classdescribed, fluid supply, anbperatingf*element ac- 'tuatedthereby, a Huid-delivery, a reciprotofregulate the volumej'of fluid" supplied to Asaid delivery@proportionatelyto 'variation of its angle of"elevfationfrelative to the area "-to be covered. *Y

` 5. Inffan apparatus fof they class described Va VHfluid supply, an operating lelem'ent actuated/thereby, a fluid delivery including a plurality 'of' sprinkling deviees voperatively connected with said operating element for oscillatory movement, Ia vaii'able'control for lsaid delivery, and "a l lever operatively 'connecting said control and said delivery ef-l a fluid supply, an operatingelement actuated thereby, a fluid delivery, a connection between said operating element and said fluid delivery andefl'ective to impart to the latter an oscillatory movement, a variable control for said fluid supply,.a lever actuatably disposed relative to said connection, and a rock shaft within the operative influence of said lever to regulate-the supply to said operating element, said lever also being operatively connected with said variable control to regulate the fluid supplied to said delivery in proportion to the relative transverse speed of the delivery.

7 -In combination, a supply, a delivery oscillated thereby in a vertical plane at a constant speed, and a control operated by the delivery for varying the supply to said delivery whereby to distribute a uniform precipitation on each unit of space covered by said distribution.

8. In combination, a supply, a laterally movable delivery having a variable angle of elevation and oscillated in a vertical plane and at a constant speed by said supply, and a control operated by the delivery for varying the supply to said delivery according to the relative lateral distance of said delivery from its central axis, whereby to distribute a uniform precipitation on each unit of space covered by said distribution.

9. In an apparatus of the class described a fluid supply, a fluid delivery adapted for vertical oscillation thereby in a vertical plane and at a constant speed, and a variable control operated by said delivery effective to regulate the volume of fluid supplied to said delivery proportionately to the varying positions of said delivery relative to the area to be covered whereby a uniform precipitation on each unit of space covered by said distribution is secured.

10. In an apparatus of the class described, a fluid supply, a fluid delivery adapted for oscillation thereby in a vertical plane and at a constant speed, and a variable control operated by said delivery effective to regulate the volume of fluid supplied to said delivery proportionately as said delivery approaches the relative limits of its arcual movement whereby a uniform precipitation on each unit space covered by vsaid distribution is secured.

11. In an apparatus of the class described, y

a fluid supply, a fluid delivery adapted for oscillation thereby in a vertical plane and at a constant speed, and a variable control operated by said delivery effective to regulate the volume of fluid supplied to said delivery proportionately to the variation in the angle of elevation of said delivery relative to the area to be covered whereby a uniform precipitation on each unit of space covered by said distribution is secured.

l2. In an apparatus of the class described, a Huid supply, an operating element actuated thereby at a constant speed, a fluid delivery loperatively connected with said op.- erating element for oscillation thereby in a vertical plane and a variable control for said fluid supply operated by said delivery and eective to regulate the volume of fluid supplied to said operating element proportionately to the varying positions of said delivery relative to the area to be covered.

13. In an apparatus of the class described, a fluid supply, an operating element actuated thereby, a fluid delivery, an operative connection between said operating element and said delivery effective to impart oscillatory movement to said delivery, a variable i control for said fluid'delivery, and a member operatively associated with said variable control and actuatably disposed relative to,

said connection between the operating element and the fluid delivery for varying said control proportionately to the varying positions of said fluid delivery. Y

14. In an apparatus of the class described, a fluid supply, an operating element actuated thereby, a fluid delivery, an Voperative connection between said operating element and said delivery effective to impart oscillatory movement to said delivery, a variable control for said fluid delivery, a member operatively associated with said variable control and actuatably disposed relative to said connection between the operating element and the fluid delivery for varying said control proportionately to the varying positions of said fluid delivery, and means actuatably disposed relative to said operative connection for controlling the fluid supplied to said operating element.

In testimony whereof afiiX my signature in presence of two witnesses.

ROY N. STEWART.

Witnesses:

VICTORIA LOWDEN, MARION C. HoBBs.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents,

v Washington, D. C. 

